Double HandedClub Certificate2026
JesssNOR 427
Norges Seilforbund
Sognsveien 73
0854 OSLO
Rated boat velocities in knots
Wind Velocity 4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Beat Angles45.7°42.5°40.4°39.0°38.7°39.1°39.3°40.7°43.1°
Beat VMG2.343.293.954.264.364.404.434.374.09
52°3.664.965.796.116.226.286.336.346.20
60°3.925.215.976.296.426.496.556.596.51
75°4.105.396.106.476.696.826.927.047.06
90°4.025.486.156.516.847.107.307.617.79
110°4.155.676.466.877.177.467.758.338.86
120°4.045.596.456.987.457.868.289.139.91
135°3.615.086.116.777.388.129.0410.5812.15
150°3.004.315.386.186.777.318.0310.3413.76
Run VMG2.603.734.665.365.896.336.968.9611.92
Gybe Angles140.4°144.0°148.5°152.0°153.0°150.2°146.0°145.0°148.8°
APH ToD:601.4CDL: 6.830APH ToT: 0.9977CertNo:7677
BOAT
ClassJ-80 ODDesignerJohnstoneBuilderJ Composite FranceAge date01/2002Series date01/1992Offset fileJ80.OD+.offData file7677
HULL
Length Overall8.032 mMaximum Beam2.488 mDraft1.499 mDisplacement1,453 kgDLR4.5839IMS DivisionSportboatDynamic Allowance0.140%Age Allowance0.650%RS Assessment-0.127%
PROPELLER
InstallationNo PropellerTypeN/ADiameterN/A
CREW
Maximum weight200 kg(declared)Minimum weight120 kg ✱ when appliedCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail20.9621.61Headsail Luffed13.8213.82Headsail FlyingSymmetricAsymmetric63.6863.68 (All asymmetric spinnakers with SHW/SFL > 85%)
STORM SAIL AREAS Maximum (m²)
Trysail6.10Storm Jib4.57Heavy Weather Jib12.34
SAIL LIMITS
Headsails5Spinnakers4
STABILITY
Righting Moment 27.2 kg·m Stability Index 109.8
The owner and any other person in charge is responsible that boat is complying with her certificate in accordance with RRS 78.1 and ORC Rule 304.
ORC Ref  03440004NLC Issued on 29/04/2026 Valid until 31/03/2027
VPP ver: 2026 1.00 | © ORC | www.orc.org
Double HandedClub Certificate2026
JesssNOR 427
Norges Seilforbund
Sognsveien 73
0854 OSLO
Time Allowances in secs/NM
Wind Velocity 4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Beat VMG1540.81095.0910.3844.9824.9817.3812.4824.1879.8
52°984.8725.2622.1589.5578.6573.0569.1567.9580.6
60°918.8691.1602.7572.5561.0554.5549.8546.6553.0
75°877.1668.4589.8556.4538.2527.7520.0511.5509.8
90°895.2656.5585.5553.1526.4507.4493.0473.3462.0
110°866.9634.5557.6524.3502.4482.8464.6432.4406.2
120°891.8644.6558.4515.8482.9458.1434.9394.4363.4
135°996.9709.1588.8531.7487.8443.2398.4340.1296.4
150°1199.3835.4668.7582.6531.5492.4448.2348.0261.6
Run VMG1384.8964.6772.1671.2611.4568.6517.6401.9302.0
Selected Courses
Windward / Leeward1462.81029.8841.2758.1718.2692.9665.0613.0590.9
All purpose1113.4799.2672.4618.1588.8567.8547.2513.9499.3
Single Number Scoring Options
Course Time On
Distance 		Time On
Time
Windward / Leeward738.40.8126
All purpose601.40.9977
Custom scoring options for Australia
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low735.80.8154
Triple Number Coastal/Long Distance Medium600.20.9996
Triple Number Coastal/Long Distance High539.81.1115
Triple Number Windward/Leeward Low935.50.6414
Triple Number Windward/Leeward Medium735.40.8159
Triple Number Windward/Leeward High652.50.9196
Custom scoring options for Austria
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance650.60.9222
Triple Number Coastal/Long Distance Low735.80.8154
Triple Number Coastal/Long Distance Medium600.20.9996
Triple Number Coastal/Long Distance High539.81.1115
Triple Number Windward/Leeward Low935.50.6414
Triple Number Windward/Leeward Medium735.40.8159
Triple Number Windward/Leeward High652.50.9196
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1455.01023.3793.7688.9628.1589.9552.4487.3465.8
Custom scoring options for Brazil
Scoring Option Time On
Time
Upwind "bolina"0.6853
Downwind "popa"0.9318
70% up, 30% down "Ilhabela"0.7444
30% up, 70% down "Ilhabela-inverso"0.8410
Custom scoring options for Bulgaria
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low735.80.8154
Triple Number Coastal/Long Distance Medium600.20.9996
Triple Number Coastal/Long Distance High539.81.1115
Triple Number Windward/Leeward Low935.50.6414
Triple Number Windward/Leeward Medium735.40.8159
Triple Number Windward/Leeward High652.50.9196
Predominantly Upwind661.50.9071
Predominantly Downwind587.61.0211
Custom scoring options for Canada
Scoring OptionTODTOT Scoring OptionTODTOT Scoring OptionTODTOT Single Number AP620.70.9667 Predom. Rc High477.91.2554 5B SF Bay L/M786.40.7630 TriNum AP Low735.80.8154 Predom. Dn Low863.90.6945 5B SF Bay Med701.80.8549 TriNum AP Med600.30.9995 Predom. Dn L/M658.10.9117 5B SF Bay M/H646.90.9275 TriNum AP High539.81.1115 Predom. Dn Med574.61.0442 5B SF Bay High608.60.9859 TriNum W/L Low979.90.6123 Predom. Dn M/H504.21.1899 5B AP Low806.50.7439 TriNum W/L Med735.40.8159 Predom. Dn High446.51.3439 5B AP L/M659.60.9097 TriNum W/L Hig652.50.9196 ChiMac Up Low805.20.7451 5B AP Med593.61.0108 Predom. Upwind687.10.8732 ChiMac Up Med739.30.8116 5B AP M/H548.61.0938 Predom. Reaching589.11.0185 ChiMac Up High661.60.9069 5B AP High517.11.1603 Predom. Downwind608.70.9858 ChiMac Off Low755.20.7945 5B W/L Low1090.90.5500 Predom. Up Low900.20.6665 ChiMac Off Med673.80.8905 5B W/L L/M821.50.7304 Predom. Up L/M707.70.8478 ChiMac Off High570.81.0511 5B W/L Med726.40.8260 Predom. Up Med647.30.9269 ChiMac AP Low777.60.7716 5B W/L M/H665.40.9017 Predom. Up M/H615.00.9757 ChiMac AP Med704.90.8512 5B W/L High618.20.9706 Predom. Up High601.30.9978 ChiMac AP High615.50.9748 W/L 60-40 Low1104.80.5431 Predom. Rc Low787.80.7616 BayMac Cove Island887.20.6763 W/L 60-40 L/M837.60.7164 Predom. Rc L/M621.70.9650 BayMac Shore881.80.6804 W/L 60-40 Med747.70.8025 Predom. Rc Med559.21.0730 Harvest Moon517.71.1590 W/L 60-40 M/H695.60.8625 Predom. Rc M/H510.31.1759 5B SF Bay Low928.50.6462 W/L 60-40 High660.90.9079      SA/DSPL Up27.08SA/DSPL Dn65.91
Custom scoring options for Cyprus
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance650.60.9222
Triple Number Coastal/Long Distance Low735.80.8154
Triple Number Coastal/Long Distance Medium600.20.9996
Triple Number Coastal/Long Distance High539.81.1115
Triple Number Windward/Leeward Low935.50.6414
Triple Number Windward/Leeward Medium735.40.8159
Triple Number Windward/Leeward High652.50.9196
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1455.01023.3793.7688.9628.1589.9552.4487.3465.8
Custom scoring options for Denmark
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance650.60.9222
Triple Number Coastal/Long Distance Low735.80.8154
Triple Number Coastal/Long Distance Medium600.20.9996
Triple Number Coastal/Long Distance High539.81.1115
Triple Number Windward/Leeward Low935.50.6414
Triple Number Windward/Leeward Medium735.40.8159
Triple Number Windward/Leeward High652.50.9196
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1455.01023.3793.7688.9628.1589.9552.4487.3465.8
Custom scoring options for Spain
Scoring Option Time On
Distance
Coastal/Long Distance650.6
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1455.01023.3793.7688.9628.1589.9552.4487.3465.8
Custom scoring options for Estonia
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low735.80.8154
Triple Number Coastal/Long Distance Medium600.20.9996
Triple Number Coastal/Long Distance High539.81.1115
Triple Number Windward/Leeward Low935.50.6414
Triple Number Windward/Leeward Medium735.40.8159
Triple Number Windward/Leeward High652.50.9196
Custom scoring options for Finland
Scoring Option Time On
Distance 		Time On
Time
FinRating650.60.9222
FinRating, kevyt tuuli1072.40.9324
FinRating, kova tuuli518.50.9644
Custom scoring options for France
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low735.80.8154
Triple Number Coastal/Long Distance Medium600.20.9996
Triple Number Coastal/Long Distance High539.81.1115
Triple Number Windward/Leeward Low935.50.6414
Triple Number Windward/Leeward Medium735.40.8159
Triple Number Windward/Leeward High652.50.9196
Custom scoring options for Germany
Scoring Option Time On
Time
Coastal/Long Distance0.9222
Triple Number Coastal/Long Distance Low0.8154
Triple Number Coastal/Long Distance Medium0.9996
Triple Number Coastal/Long Distance High1.1115
Triple Number Windward/Leeward Low0.6414
Triple Number Windward/Leeward Medium0.8159
Triple Number Windward/Leeward High0.9196
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1455.01023.3793.7688.9628.1589.9552.4487.3465.8
For information
General Purpose Handicap (GPH)666.8
Custom scoring options for Greece
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance650.60.9222
Triple Number Coastal/Long Distance Low735.80.8154
Triple Number Coastal/Long Distance Medium600.20.9996
Triple Number Coastal/Long Distance High539.81.1115
Triple Number Windward/Leeward Low935.50.6414
Triple Number Windward/Leeward Medium735.40.8159
Triple Number Windward/Leeward High652.50.9196
Saronikos S All Purpose669.90.8956
Saronikos S Upwind780.70.7686
Saronikos S Downwind529.21.1339
Saronikos N All Purpose717.30.8365
Saronikos N Upwind816.70.7347
Saronikos N Downwind595.71.0072
Saronikos SW All Purpose668.10.8980
Saronikos SW Upwind791.10.7585
Saronikos SW Downwind543.61.1038
Saronikos NE All Purpose732.70.8189
Saronikos NE Upwind764.00.7853
Saronikos NE Downwind662.90.9051
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1455.01023.3793.7688.9628.1589.9552.4487.3465.8
Custom scoring options for Hungary
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low735.80.8154
Triple Number Coastal/Long Distance Medium600.20.9996
Triple Number Coastal/Long Distance High539.81.1115
Triple Number Windward/Leeward Low935.50.6414
Triple Number Windward/Leeward Medium735.40.8159
Triple Number Windward/Leeward High652.50.9196
Custom scoring options for Ireland
Scoring OptionTODTOT
Single Number All-Purpose620.70.9667
5-Band All Purpose Low879.10.6825
5-Band All Purpose L/M681.90.8799
5-Band All Purpose Med610.70.9825
5-Band All Purpose M/H560.01.0714
5-Band All Purpose High524.81.1433
Single Number Predominant Upwind659.70.9095
Single Number Predominant Reaching570.21.0523
Single Number Predominant Downwind589.31.0182
5-Band 50-50 Windward/Leeward Low1090.90.5500
5-Band 50-50 Windward/Leeward L/M821.50.7304
5-Band 50-50 Windward/Leeward Med726.40.8260
5-Band 50-50 Windward/Leeward M/H665.40.9017
5-Band 50-50 Windward/Leeward High618.20.9706
5-Band 60-40 Windward/Leeward Low1104.80.5431
5-Band 60-40 Windward/Leeward L/M837.60.7164
5-Band 60-40 Windward/Leeward Med747.70.8025
5-Band 60-40 Windward/Leeward M/H695.60.8625
5-Band 60-40 Windward/Leeward High660.90.9079
Triple Number 50-50 Windward/Leeward Low979.90.6123
Triple Number 50-50 Windward/Leeward Med735.50.8158
Triple Number 50-50 Windward/Leeward High652.50.9196
Scoring OptionTODTOT
Single Number 60-40 Windward/Leeward760.40.7891
Triple Number 60-40 Windward/Leeward Low993.90.6037
Triple Number 60-40 Windward/Leeward Med755.80.7939
Triple Number 60-40 Windward/Leeward High685.60.8752
Triple Number All-Purpose Low796.90.7529
Triple Number All-Purpose Med618.10.9707
Triple Number All-Purpose High550.31.0903
Triple Number Predominant Upwind Low824.90.7274
Triple Number Predominant Upwind Med654.70.9165
Triple Number Predominant Upwind High622.20.9643
Triple Number Predominant Reaching Low723.30.8296
Triple Number Predominant Reaching Med576.91.0401
Triple Number Predominant Reaching High491.21.2214
Triple Number Predominant Downwind Low779.70.7696
Triple Number Predominant Downwind Med583.31.0287
Triple Number Predominant Downwind High472.71.2694
Custom scoring options for Israel
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance650.60.9222
Triple Number Coastal/Long Distance Low735.80.8154
Triple Number Coastal/Long Distance Medium600.20.9996
Triple Number Coastal/Long Distance High539.81.1115
Triple Number Windward/Leeward Low935.50.6414
Triple Number Windward/Leeward Medium735.40.8159
Triple Number Windward/Leeward High652.50.9196
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1455.01023.3793.7688.9628.1589.9552.4487.3465.8
Custom scoring options for Japan
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance650.60.9222
Triple Number Coastal/Long Distance Low735.80.8154
Triple Number Coastal/Long Distance Medium600.20.9996
Triple Number Coastal/Long Distance High539.81.1115
Triple Number Windward/Leeward Low935.50.6414
Triple Number Windward/Leeward Medium735.40.8159
Triple Number Windward/Leeward High652.50.9196
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1455.01023.3793.7688.9628.1589.9552.4487.3465.8
Custom scoring options for Korea
Scoring Option Time On
Distance
Triple Number Coastal/Long Distance Low735.8
Triple Number Coastal/Long Distance Medium600.2
Triple Number Coastal/Long Distance High539.8
Triple Number Windward/Leeward Low935.5
Triple Number Windward/Leeward Medium735.4
Triple Number Windward/Leeward High652.5
Predominantly Upwind661.5
Predominantly Downwind587.6
Predominantly Reaching572.4
Custom scoring options for Lithuania
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance650.60.9222
Triple Number Coastal/Long Distance Low735.80.8154
Triple Number Coastal/Long Distance Medium600.20.9996
Triple Number Coastal/Long Distance High539.81.1115
Triple Number Windward/Leeward Low935.50.6414
Triple Number Windward/Leeward Medium735.40.8159
Triple Number Windward/Leeward High652.50.9196
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1455.01023.3793.7688.9628.1589.9552.4487.3465.8
Custom scoring options for Netherlands
Scoring Option Time On
Time
Triple Number Coastal/Long Distance Low0.8154
Triple Number Coastal/Long Distance Medium0.9996
Triple Number Coastal/Long Distance High1.1115
Triple Number Windward/Leeward Low0.6414
Triple Number Windward/Leeward Medium0.8159
Triple Number Windward/Leeward High0.9196
Coastal/Long Distance0.9222
Predominantly Upwind0.9071
Predominantly Downwind1.0211
For information
General Purpose Handicap (GPH)666.8
Custom scoring options for Norway
Scoring Option Time On
Time
Distanseseilas Singeltall  (APH)0.9977
Distanseseilas Trippeltall svak vind0.8154
Distanseseilas Trippeltall mellomvind0.9996
Distanseseilas Trippeltall sterk vind1.1115
Pølsebane Trippeltall svak vind0.6414
Pølsebane Trippeltall mellomvind0.8159
Pølsebane Trippeltall sterk vind0.9196
Motvind Singeltall0.9071
Medvind Singeltall1.0211
Custom scoring options for Portugal
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low735.80.8154
Triple Number Coastal/Long Distance Medium600.20.9996
Triple Number Coastal/Long Distance High539.81.1115
Triple Number Windward/Leeward Low935.50.6414
Triple Number Windward/Leeward Medium735.40.8159
Triple Number Windward/Leeward High652.50.9196
Coastal/Long Distance650.60.9222
Custom scoring options for Russia
Scoring Option Time On
Distance 		Time On
Time
Predominantly Upwind661.50.9071
Predominantly Downwind587.61.0211
Custom scoring options for South Africa
Scoring Option Time On
Distance 		Time On
Time
Cape Doctor Inshore597.51.0041
Cape Doctor Coastal503.71.1912
Triple Number Coastal/Long Distance Low735.80.8154
Triple Number Coastal/Long Distance Medium600.20.9996
Triple Number Coastal/Long Distance High539.81.1115
Triple Number Windward/Leeward Low935.50.6414
Triple Number Windward/Leeward Medium735.40.8159
Triple Number Windward/Leeward High652.50.9196
Custom scoring options for Slovenia
Scoring Option Time On
Time
Triple Number Coastal/Long Distance Low0.8154
Triple Number Coastal/Long Distance Medium0.9996
Triple Number Coastal/Long Distance High1.1115
Triple Number Windward/Leeward Low0.6414
Triple Number Windward/Leeward Medium0.8159
Triple Number Windward/Leeward High0.9196
Custom scoring options for Switzerland
Scoring Option Time On
Time
Triple Number Coastal/Long Distance Low0.8154
Triple Number Coastal/Long Distance Medium0.9996
Triple Number Coastal/Long Distance High1.1115
Triple Number Windward/Leeward Low0.6414
Triple Number Windward/Leeward Medium0.8159
Triple Number Windward/Leeward High0.9196
Custom scoring options for Sweden
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance650.60.9222
Triple Number Coastal/Long Distance Low735.80.8154
Triple Number Coastal/Long Distance Medium600.20.9996
Triple Number Coastal/Long Distance High539.81.1115
Triple Number Windward/Leeward Low935.50.6414
Triple Number Windward/Leeward Medium735.40.8159
Triple Number Windward/Leeward High652.50.9196
Predominantly Upwind661.50.9071
Predominantly Downwind587.61.0211
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1455.01023.3793.7688.9628.1589.9552.4487.3465.8
Custom scoring options for Ukraine
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance650.60.9222
Triple Number Coastal/Long Distance Low735.80.8154
Triple Number Coastal/Long Distance Medium600.20.9996
Triple Number Coastal/Long Distance High539.81.1115
Triple Number Windward/Leeward Low935.50.6414
Triple Number Windward/Leeward Medium735.40.8159
Triple Number Windward/Leeward High652.50.9196
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1455.01023.3793.7688.9628.1589.9552.4487.3465.8
Custom scoring options for United States of America
Scoring OptionTODTOT Scoring OptionTODTOT Scoring OptionTODTOT Single Number AP620.70.9667 Predom. Dn High446.51.3439 5B AP M/H548.61.0938 TriNum AP Low735.80.8154 Predom. Rc Low787.80.7616 5B AP High517.11.1603 TriNum AP Med600.30.9995 Predom. Rc L/M621.70.9650 5B SF Bay Low928.50.6462 TriNum AP High539.81.1115 Predom. Rc Med559.21.0730 5B SF Bay L/M786.40.7630 TriNum W/L Low979.90.6123 Predom. Rc M/H510.31.1759 5B SF Bay Med701.80.8549 TriNum W/L Med735.40.8159 Predom. Rc High477.91.2554 5B SF Bay M/H646.90.9275 TriNum W/L Hig652.50.9196 5B W/L Low1090.90.5500 5B SF Bay High608.60.9859 Predom. Upwind687.10.8732 5B W/L L/M821.50.7304 ChiMac Up Low805.20.7451 Predom. Reaching589.11.0185 5B W/L Med726.40.8260 ChiMac Up Med739.30.8116 Predom. Downwind608.70.9858 5B W/L M/H665.40.9017 ChiMac Up High661.60.9069 Predom. Up Low900.20.6665 5B W/L High618.20.9706 ChiMac Off Low755.20.7945 Predom. Up L/M707.70.8478 W/L 60-40 Low1104.80.5431 ChiMac Off Med673.80.8905 Predom. Up Med647.30.9269 W/L 60-40 L/M837.60.7164 ChiMac Off High570.81.0511 Predom. Up M/H615.00.9757 W/L 60-40 Med747.70.8025 ChiMac AP Low777.60.7716 Predom. Up High601.30.9978 W/L 60-40 M/H695.60.8625 ChiMac AP Med704.90.8512 Predom. Dn Low863.90.6945 W/L 60-40 High660.90.9079 ChiMac AP High615.50.9748 Predom. Dn L/M658.10.9117 5B AP Low806.50.7439 BayMac Cove Island887.20.6763 Predom. Dn Med574.61.0442 5B AP L/M659.60.9097 BayMac Shore881.80.6804 Predom. Dn M/H504.21.1899 5B AP Med593.61.0108 Harvest Moon517.71.1590      SA/DSPL Up27.08SA/DSPL Dn65.91
ORC Ref  03440004NLC Issued on 29/04/2026 Valid until 31/03/2027
VPP ver: 2026 1.00 | © ORC | www.orc.org
Double HandedClub Certificate2026
JesssNOR 427
Norges Seilforbund
Sognsveien 73
0854 OSLO
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassJ-80 ODMeasurementHINPlan reviewHull constructionCoredCarbon rudderNoLight stanchionsNoTrim tabNo
Length overall8.032Maximum beam2.488Draft1.499Displacement1,453Wetted area11.83IMS L7.107LSM06.817Accomod. length8.032Sink (kg/mm) 9.02
VCGD-0.150VCGM-0.079 RM Rated (kg·m) 27.2Limit of positive stability(°) 116.5 Stability Index 109.8 BLR index 0.0000Default crew weight170 Declared crew weight 200
Centerboard weightList angleCanting keel angle
PROPELLER
Propeller TypeNo Propeller
Hydro generatorNo
RIG
BackstayAdjustableForestayFixedInner forestayNot installedMast materialAluminumSingle headsail furlerNoMainsail furlerArticulated bowspritNoNon-circular riggingNoFiber riggingNoBase of mastFixedRunning backstaysNoCheckstaysNoSpreaders2Rotating mastNo
P9.140IG9.560ISP10.060MDT10.080MDL10.130MDT20.060MDL20.100TL0.380MW0.120GO0.120
E3.810J2.900BAS1.300FSD0.025SFJ0.000SPL0.000WPLTPS4.810BD0.000MWT33.10MCG3.210
PY0.000MDT1YMDL1YMDT2YMDL2YTLYBASYEYBDYIYEB
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodVCG entered directlyVCG entered-0.150Flotation Date01/01/2015
SFFP0.177FFM0.870FF0.870LCFcl4.246SG
SAFP8.015FAM0.630FA0.630LCFsh4.422HBI0.736
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible
ORC Ref  03440004NLC Issued on 29/04/2026 Valid until 31/03/2027
VPP ver: 2026 1.00 | © ORC | www.orc.org
Double HandedClub Certificate2026
JesssNOR 427
Norges Seilforbund
Sognsveien 73
0854 OSLO
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateComment7677-2004012412000.160.001.442.483.1920.9601/01/17537677-2004012412000.160.001.442.483.1920.9601/01/1753
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateComment394-2023041214530.070.410.771.462.222.959.29YesNo 13.8212/04/2023394-2023041214530.070.410.771.462.222.959.29YesNo 13.8212/04/2023
ASYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLRatioAreaMeas.DateComment466-20250901154811.918.9810.457.307.3899%63.6801/09/2025466-20250901154811.918.9810.457.307.3899%63.6801/09/2025466-20250901154612.069.7010.886.526.8595%59.7101/09/2025466-20250901154612.069.7010.886.526.8595%59.7101/09/2025
NON MANUAL POWER CONTROLS (NMP)
SheetsNoMainsail cunninghamNoJib trackNoSpinnaker retrieverNoBoomvangNoHeadsail cunninghamNoTack lineNoOuthaulNoMain travellerNoHalyardsNo
CRUISER/RACER REQUIREMENTS*
Accommodation length8.0 mTable area0.33 m²Headroom1.40 mMinimum number of berths3Personal gear stowage0.12 m³Fresh water capacity30 lMinimum number of seats in cockpit3Food stowage0.18 m³Fuel capacity20 lCabin soleStovesSinksGalley gear stowageToiletWash basinNavigation areaHanging locker
*This list is a summary of the requirements. See IMS Appendix 1 for details.
ORC Ref  03440004NLC Issued on 29/04/2026 Valid until 31/03/2027
VPP ver: 2026 1.00 | © ORC | www.orc.org